study

2023-11-29 16:52:47 +09:00
parent 410c342102
commit 47d2a97cdd
8 changed files with 215 additions and 0 deletions
--- a/StateMachine/CarStateMachine/Model/Car.cs
+++ b/StateMachine/CarStateMachine/Model/Car.cs
@@ -0,0 +1,53 @@
+namespace CarStateMachine.Model
+{
+    public class Car
+    {
+        public enum State
+        {
+            Stopped,
+            Started,
+            Running,
+        }
+
+        public enum Action
+        {
+            Stop,
+            Start,
+            Accelerate,
+        }
+
+        private State _state = State.Stopped;
+        public State CurrentState { get { return _state; } }
+
+        public void TakeAction(Action action)
+        {
+            State state = _state;
+            switch (_state, action)
+            {
+                case (State.Stopped, Action.Start):
+                    state = State.Started;
+                    break;
+                case (State.Started, Action.Accelerate):
+                    state = State.Running;
+                    break;
+                case (State.Started, Action.Stop):
+                    state = State.Stopped;
+                    break;
+                case (State.Running, Action.Stop):
+                    state = State.Stopped;
+                    break;
+            }
+
+            _state = state;
+
+            // _state = (_state, action) switch
+            // {
+            //     (State.Stopped, Action.Start) => State.Started,
+            //     (State.Started, Action.Accelerate) => State.Running,
+            //     (State.Started, Action.Stop) => State.Stopped,
+            //     (State.Running, Action.Stop) => State.Stopped,
+            //     _ => _state
+            // };
+        }
+    }
+}